Bede's Ecclesiastical History of England, ed. by A.M. Sellar, [1907], at sacred-texts.com

CHAP. XXVIII. How, when Tuda was dead, Wilfrid was ordained, in Gaul, and Ceadda, among the West Saxons, to be bishops for the province of the Northumbrians. [664 A.D.]

IN the meantime, King Alchfrid sent the priest, Wilfrid, to the king of Gaul, in order that he should cause him to be consecrated bishop for himself and his people. That prince sent him to be ordained by Agilbert,of whom we have before spoken, and who, having left Britain, was made bishop of the city of Paris;and by him Wilfrid was honourably consecrated, several bishops meeting together for that purpose in a village belonging to the king, called In Compendio.He stayed some time
in the parts beyond the sea for his ordination, and King Oswy, following the example of his son’s zeal, sent into Kent a holy man, of modest character, well read in the Scripture, and diligently practising those things which he had learned therein, to be ordained bishop of the church of York. This was a priest called Ceadda, brother to the most reverend prelate Cedd, of whom mention has been often made, and abbot of the monastery of Laestingaeu. With him the king also sent his priest
Eadhaed,who was afterwards, in the reign of Egfrid,made bishop of the church of Ripon. Now when they arrived in Kent, they found that Archbishop Deusdedit had departed this life, and no other bishop was as yet appointed in his place; whereupon they betook themselves to the province of the West Saxons, where Wini was bishop, and by him Ceadda was consecrated; two bishops of the British nation, who kept Easter Sunday, as has been often said, contrary to the canonical manner, from the fourteenth
to the twentieth moon, being called in to assist at the ordination; for at that time there was no other bishop in all Britain canonically ordained, except Wini.

So Ceadda, being consecrated bishop, began immediately to labour for ecclesiastical truth and purity of doctrine; to apply himself to humility, self-denial, and study; to travel about, not on horseback, but after the manner of the Apostles, on foot, to preach the Gospel in towns, the open country, cottages, villages, and castles; for he was one of the disciples of Aidan, and endeavoured to instruct his people by the same manner of life and character, after his and his own brother
Cedd’s example. Wilfrid also having been now made a bishop, came into Britain, and in like manner by his teaching brought into the English Church many rules of Catholic observance. Whence it followed, that the Catholic principles daily gained strength, and all the Scots that dwelt in England either conformed to these, or returned into their own country.